Thabeet is the third Rockets player to be assigned to the Vipers this season. He averaged 13.8 points, 11.2 boards and 3.17 blocks in six games with the D-League Dakota Wizards in 2009-10.
The former Connecticut star was the second overall pick in the 2009 draft. In 2009-10, he ranked second among rookies in blocks per game (1.31).